| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials 2024
|
| Presentation Title |
Engineering the Fracture Toughness of Polymer-infiltrated Nanoparticle Films |
| Author(s) |
Kevin Turner, Yiwel Qiang, Daeyeon Lee |
| On-Site Speaker (Planned) |
Kevin Turner |
| Abstract Scope |
Polymer-infiltrated nanoparticle films (PINFs) are nanocomposites with high filler content (>50 wt%) that have applications as functional coatings and membranes. PINFs are composed of hard nanoparticle fillers (e.g. oxides) infiltrated with polymers. The mechanical properties of PINFs are controlled by the polymer, nanoparticles, and the polymer-nanoparticle interface. Here, we investigate the fracture behavior of PINFs using double cantilever beam tests. Through a systematic experimental study, the effect of particle size, polymer molecular weight, and particle-polymer interactions on fracture properties were investigated in PINFs composed of silicon dioxide nanoparticles and either polystyrene and poly(2-vinyl-pyridine). The degree of polymer confinement and strength of the polymer-nanoparticle interactions both play an important role in controlling PINF fracture behavior. Our results illustrate the importance of understanding the interplay between polymer confinement and polymer−nanoparticle interactions in controlling and tuning the mechanical behavior of PINFs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Mechanical Properties, Polymers |